Giant prehistoric geese the size of small aircraft once flew over Britain, scientists discovered. Dasornis, which had a 16 ft wingspan and sharp teeth, lived 50 million years ago and was related to ducks and geese.

In a find that has stunned archaeologists and anthropologists, a vast wall of about 1500 paintings chronicles the history of Aboriginal contact with outsiders, from Macassan prows and European sailing ships to 19th-century steamships and a World War II

Click reports from San Jose in California on the latest developments in the world of computer graphics. © 2008 BBC

Scientists have discovered hundreds of new animal species living on coral reefs in Australia. © 2008 BBC

Doctors in hospitals now study patients declared clinically dead and live again had Out of Body Experiences. People report soaring out of their bodies and look down on themselves. Dr David Kagan Sunstroke author explores the phenomenon in Doomwatch Legacy

Evolution is the linchpin of modern biology. Republican VP nominee Sarah Palin wants creationism to be taught in public schools. This would violate the Constitution, so creationists are using buzzwords like "academic freedom" to attack evolution.

"Humans are influencing climate through increasing greenhouse gas emissions and the warming is causing impacts on physical and biological systems that are now attributable at the global scale and in North America, Europe, and Asia," said Rosenzweig.

Now it's time for new voices to inspire us to fight the dangers of global warming. The submission process is open to anyone in the United States through November 15, 2008. A panel of judges will select the top essays and photographs to be included

ALASKA - A hungry polar bear stuck on land forced five scientists studying the effects of global warming to be airlifted away from their camp. Polar bears are becoming increasingly trapped on land well away from their usual seal prey, say biologists.

An estimated 115 million animals are used in animal experiments worldwide, although it is difficult to get the exact numbers.